def test_dlw(self):
# Make sure that cells with DLW data only exist once
top = Cell('parent_cell')
child = Cell('child1')
wg1 = Waveguide([0, 0], 0, 1)
wg1.add_straight_segment(10)
child.add_to_layer(1, wg1)
# This should be ok, as child contains no DLW data
top.add_cell(child, [0, 0])
top.add_cell(child, [100, 0])
child2 = Cell('child2')
child2.add_to_layer(1, wg1)
child2.add_dlw_taper_at_port("foo",
1,
wg1.current_port,
taper_length=40.)
top.add_cell(child2, [0, 0])
with self.assertRaises(ValueError):
top.add_cell(child2, [100, 0])
_cell_to_gdsii_binary(c, grid_steps_per_unit, max_points,
max_line_points, timestamp))
outfile.write(pack('>2H', 4, 0x0400)) # ENDLIB N0_DATA
if __name__ == '__main__':
from gdshelpers.parts.port import Port
from gdshelpers.parts.waveguide import Waveguide
from gdshelpers.geometry.chip import Cell
device_cell = Cell('cell')
start_port = Port(origin=(10, 0), width=1, angle=0)
waveguide = Waveguide.make_at_port(start_port)
for i_bend in range(9):
waveguide.add_bend(angle=np.pi, radius=60 + i_bend * 40)
device_cell.add_dlw_taper_at_port('A', 2, waveguide.in_port, 30)
device_cell.add_dlw_taper_at_port('B', 2, waveguide.current_port, 30)
device_cell.add_to_layer(1, waveguide)
sub_cell = Cell('sub_cell')
sub_cell.add_to_layer(1, waveguide)
sub_cell.add_to_layer(3, LineString(((0, 0), (100, 100))))
line = LineString(((0, 0), (-100, 100)))
line.width = 3
sub_cell.add_to_layer(3, line)
device_cell.add_cell(sub_cell, origin=(10, 10), angle=np.pi / 2)
with open('gdsii_export.gds', 'wb') as file:
self.add_dlw_data('taper', str(label), {'origin': taper_port.origin.tolist(), 'angle': port.angle,
'starting_width': port.width, 'taper_length': taper_length})
if with_markers:
for i, (v, l) in enumerate(itertools.product((-20, 20), (taper_length, 0))):
self.add_dlw_marker(str(label) + '-' + str(i), layer,
port.parallel_offset(v).longitudinal_offset(l).origin)
if __name__ == '__main__':
from gdshelpers.parts.port import Port
from gdshelpers.parts.waveguide import Waveguide
from gdshelpers.geometry.chip import Cell
# Create a cell-like object that offers a save output command '.save' which creates the .gds or .oas file by using
# gdsCAD,gdspy or fatamorgana
device_cell = Cell('my_cell')
# Create a port to connect waveguide structures to
port = Port(origin=(0, 0), width=1, angle=0)
waveguide = Waveguide.make_at_port(port)
for i in range(9):
waveguide.add_bend(angle=np.pi, radius=60 + i * 40)
# Add direct laser writing taper and alignment marker for postprocessing with a dlw printer to the cell-like object.
# The cell dlw files will be saved with the cell.
device_cell.add_dlw_taper_at_port('A0', 2, port.inverted_direction, 30)
device_cell.add_dlw_taper_at_port('A1', 2, waveguide.current_port, 30)
device_cell.add_to_layer(1, waveguide)
device_cell.show()
# Creates the output file by using gdspy,gdsCAD or fatamorgana. To use the implemented parallell processing, set
# parallel=True.
device_cell.save(name='my_design', parallel=True, library='gdspy')
